Radeon HD 7850 vs Radeon HD 7950 3GB

Intro

Compare those specs to the Radeon HD 7950 3GB, which uses a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific model. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

Zcash Mining Hash Rate

Radeon HD 7950 3GB		229 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 58 (34%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 70 Watts (54%)

Memory Bandwidth

The Radeon HD 7950 3GB should in theory be quite a bit faster than the Radeon HD 7850 in general. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 86400 (56%)

Texel Rate

The Radeon HD 7950 3GB will be quite a bit (about 63%) better at AF than the Radeon HD 7850. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 34560 (63%)

Pixel Rate

The Radeon HD 7850 will be just a bit (approximately 8%) faster with regards to AA than the Radeon HD 7950 3GB, and also should be able to handle higher resolutions better. (explain)

Radeon HD 7850		27520 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 1920 (8%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.